This paper examines the role of comparative advantage in a Ricardian trade model with intermediate inputs. The first issue is how to define comparative advantage when there are intermediate inputs. Several definitions are suggested, differing in whether they are based on the total costs of...

When there are costs of trade, such as transport or other costs, the pattern of trade may not be well described by the usual measures of comparative advantage, which simply compare a country’s costs or autarky prices to those of the world. Instead, a better comparison takes into account the...

This paper evaluates the global welfare impact of ChinaÕs trade integration and technological change in a quantitative Ricardian-Heckscher-Ohlin model implemented on 75 countries. We simulate two alternative productivity growth scenarios: a ÒbalancedÓ one in which ChinaÕs productivity grows...